Vacuum valve for a vacuum circuit breaker

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Information

Patent Grant
D350731

References
Source

Patent Number
D350,731
Date Filed
Monday, March 22, 1993
31 years ago
Date Issued
Tuesday, September 20, 1994
30 years ago

Inventors
Original Assignees
- TOSHIBA CORPORATION
Examiners
- Burke; Wallace R.
- Sincavage; Joel
Agents
- Oblon, Spivak, McClelland, Maier & Neustadt

US Classifications
- D13 - Equipment for production, distribution, or transformation of energy
Field of Search
- US
- 200 144 B
- 439 247
- 439 536
- D13 160
- D13 173
- D13 174
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a vacuum valve for a vacuum circuit breaker, as shown and described.

Priority Claims (1)

Number	Date	Country	Kind
4-27639	Sep 1992	JPX

US Referenced Citations (5)

Number	Name	Date	Kind
3928716	Marrero	Dec 1975
4403124	Perkins et al.	Sep 1983
4839477	Orosz et al.	Jun 1989
4879441	Hamm et al.	Nov 1989
4950178	Harvey et al.	Aug 1990

Foreign Referenced Citations (1)

Number	Date	Country
D839988	Jun 1992	JPX

Non-Patent Literature Citations (1)

Entry
Asea Brown Boveri Catalog of Vacuum Circuit Breaker Type VD4, Aug. 20, 1992.